.messages-page {
    padding-top: 24px;
    padding-bottom: 24px;
}

.messages-shell {
    display: grid;
    grid-template-columns: 340px minmax(0, 1fr);
    height: clamp(620px, calc(100vh - 140px), 860px);
    border: 1px solid #e7eaf0;
    border-radius: 24px;
    background: #ffffff;
    box-shadow: 0 18px 50px rgba(15, 23, 42, 0.06);
    overflow: hidden;
}

.messages-sidebar {
    display: flex;
    flex-direction: column;
    border-right: 1px solid #edf1f6;
    background: #fbfcfe;
    min-width: 0;
    min-height: 0;
}

.messages-sidebar__head {
    padding: 24px 20px 18px;
    border-bottom: 1px solid #edf1f6;
}

.messages-sidebar__eyebrow {
    margin: 0 0 6px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: #64748b;
}

.messages-sidebar__title {
    margin: 0;
    font-size: 24px;
    line-height: 1.2;
    color: #0f172a;
}

.messages-thread-list {
    display: flex;
    flex-direction: column;
    min-height: 0;
    overflow-y: auto;
}

.messages-thread-list::-webkit-scrollbar,
.messages-panel__body::-webkit-scrollbar,
.messages-form__textarea::-webkit-scrollbar {
    width: 10px;
}

.messages-thread-list::-webkit-scrollbar-track,
.messages-panel__body::-webkit-scrollbar-track,
.messages-form__textarea::-webkit-scrollbar-track {
    background: transparent;
}

.messages-thread-list::-webkit-scrollbar-thumb,
.messages-panel__body::-webkit-scrollbar-thumb,
.messages-form__textarea::-webkit-scrollbar-thumb {
    background: #d7dfeb;
    border-radius: 999px;
}

.messages-thread-wrap {
    display: flex;
    align-items: stretch;
    border-bottom: 1px solid #eef2f7;
    background: transparent;
    transition: background-color 0.2s ease;
}

.messages-thread-wrap:hover {
    background: #f8fafc;
}

.messages-thread-wrap.is-active {
    background: #eef6ff;
}

.messages-thread {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    flex: 1;
    min-width: 0;
    padding: 16px 18px;
    text-decoration: none;
    color: inherit;
    transition: background-color 0.2s ease, transform 0.2s ease;
}

.messages-thread.is-active {
    background: transparent;
}

.messages-thread__avatar,
.messages-panel__avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: #dbeafe;
    color: #1d4ed8;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex: 0 0 48px;
    font-size: 18px;
    font-weight: 700;
}

.messages-thread__avatar img,
.messages-panel__avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.messages-thread__content {
    min-width: 0;
    flex: 1;
}

.messages-thread__top,
.messages-thread__bottom {
    display: flex;
    align-items: center;
    gap: 10px;
}

.messages-thread__top {
    justify-content: space-between;
    margin-bottom: 6px;
}

.messages-thread__name {
    min-width: 0;
    font-size: 15px;
    color: #0f172a;
}

.messages-thread__time {
    flex: 0 0 auto;
    font-size: 12px;
    color: #64748b;
}

.messages-thread__text {
    margin: 0;
    min-width: 0;
    flex: 1;
    font-size: 13px;
    line-height: 1.45;
    color: #475569;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.messages-thread__badge {
    flex: 0 0 auto;
    min-width: 22px;
    height: 22px;
    padding: 0 6px;
    border-radius: 999px;
    background: #1d4ed8;
    color: #ffffff;
    font-size: 12px;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.messages-thread-delete-form {
    display: flex;
    align-items: center;
    padding: 12px 14px 12px 0;
    flex: 0 0 auto;
}

.messages-thread-delete {
    appearance: none;
    border: 1px solid #fecaca;
    background: #fff5f5;
    color: #dc2626;
    border-radius: 12px;
    min-width: 56px;
    height: 38px;
    padding: 0 14px;
    font: inherit;
    font-size: 13px;
    font-weight: 700;
    cursor: pointer;
    transition:
        background-color 0.2s ease,
        border-color 0.2s ease,
        color 0.2s ease,
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.messages-thread-delete:hover {
    background: #fee2e2;
    border-color: #fca5a5;
    color: #b91c1c;
}

.messages-thread-delete:active {
    transform: translateY(1px);
}

.messages-thread-delete:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.12);
}

.messages-panel {
    display: flex;
    flex-direction: column;
    min-width: 0;
    min-height: 0;
    background: #ffffff;
}

.messages-panel__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 24px;
    border-bottom: 1px solid #edf1f6;
}

.messages-panel__user {
    display: flex;
    align-items: center;
    gap: 14px;
    min-width: 0;
}

.messages-panel__meta {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.messages-panel__meta strong {
    font-size: 16px;
    color: #0f172a;
}

.messages-panel__meta span {
    margin-top: 4px;
    font-size: 13px;
    color: #64748b;
}

.messages-panel__delete-form {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
}

.messages-panel__delete-btn {
    appearance: none;
    border: 1px solid #fecaca;
    background: #fff5f5;
    color: #dc2626;
    min-height: 42px;
    padding: 0 16px;
    border-radius: 14px;
    font: inherit;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition:
        background-color 0.2s ease,
        border-color 0.2s ease,
        color 0.2s ease,
        transform 0.2s ease,
        box-shadow 0.2s ease;
}

.messages-panel__delete-btn:hover {
    background: #fee2e2;
    border-color: #fca5a5;
    color: #b91c1c;
}

.messages-panel__delete-btn:active {
    transform: translateY(1px);
}

.messages-panel__delete-btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 4px rgba(220, 38, 38, 0.12);
}

.messages-panel__body {
    flex: 1;
    min-height: 0;
    overflow-y: auto;
    padding: 24px;
    background: linear-gradient(180deg, #fbfdff 0%, #f8fbff 100%);
}

.messages-bubble-row {
    display: flex;
    margin-bottom: 14px;
}

.messages-bubble-row.is-mine {
    justify-content: flex-end;
}

.messages-bubble {
    max-width: min(78%, 720px);
    padding: 14px 16px 10px;
    border-radius: 18px;
    background: #ffffff;
    border: 1px solid #e7edf5;
    box-shadow: 0 8px 22px rgba(15, 23, 42, 0.04);
}

.messages-bubble-row.is-mine .messages-bubble {
    background: #1d4ed8;
    border-color: #1d4ed8;
    color: #ffffff;
}

.messages-bubble__text {
    font-size: 14px;
    line-height: 1.65;
    word-break: break-word;
}

.messages-bubble__meta {
    margin-top: 8px;
    font-size: 12px;
    opacity: 0.8;
}

.messages-panel__foot {
    padding: 18px 24px 24px;
    border-top: 1px solid #edf1f6;
    background: #ffffff;
    flex: 0 0 auto;
}

.messages-form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.messages-form__textarea {
    width: 100%;
    min-height: 92px;
    max-height: 180px;
    resize: none;
    overflow-y: auto;
    border: 1px solid #d7e0ea;
    border-radius: 16px;
    padding: 14px 16px;
    font: inherit;
    font-size: 14px;
    line-height: 1.5;
    color: #0f172a;
    background: #ffffff;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.messages-form__textarea:focus {
    border-color: #93c5fd;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
}

.messages-form__actions {
    display: flex;
    justify-content: flex-end;
}

.messages-form__submit {
    min-width: 140px;
    min-height: 46px;
    border-radius: 14px;
}

.messages-empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #64748b;
}

.messages-empty-state strong {
    color: #0f172a;
    font-size: 16px;
}

.messages-empty-state p {
    margin: 8px 0 0;
    max-width: 420px;
    line-height: 1.55;
}

.messages-empty-state--sidebar {
    padding: 40px 20px;
    min-height: 180px;
}

.messages-empty-state--panel,
.messages-empty-state--conversation {
    min-height: 100%;
    padding: 32px;
}

.messages-empty-state__icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: #eff6ff;
    font-size: 28px;
    margin-bottom: 14px;
}

html[dir="rtl"] .messages-sidebar,
body.is-rtl .messages-sidebar {
    border-right: 0;
    border-left: 1px solid #edf1f6;
}

html[dir="rtl"] .messages-thread-delete-form,
body.is-rtl .messages-thread-delete-form {
    padding: 12px 0 12px 14px;
}

@media (max-width: 1100px) {
    .messages-shell {
        grid-template-columns: 300px minmax(0, 1fr);
    }

    .messages-bubble {
        max-width: 88%;
    }
}

@media (max-width: 860px) {
    .messages-shell {
        grid-template-columns: 1fr;
        height: auto;
        max-height: none;
    }

    .messages-sidebar {
        border-right: 0;
        border-bottom: 1px solid #edf1f6;
        max-height: 320px;
    }

    .messages-thread-wrap {
        align-items: center;
    }

    .messages-thread-delete-form {
        padding-right: 12px;
    }

    .messages-panel__head {
        flex-direction: column;
        align-items: stretch;
    }

    .messages-panel__delete-form {
        width: 100%;
    }

    .messages-panel__delete-btn {
        width: 100%;
        justify-content: center;
    }

    .messages-panel__body {
        min-height: 420px;
        padding: 18px;
    }

    .messages-panel__head,
    .messages-panel__foot {
        padding-left: 18px;
        padding-right: 18px;
    }
}

@media (max-width: 640px) {
    .messages-page {
        padding-top: 14px;
        padding-bottom: 14px;
    }

    .messages-shell {
        border-radius: 18px;
    }

    .messages-sidebar__head {
        padding: 18px 16px 14px;
    }

    .messages-sidebar__title {
        font-size: 20px;
    }

    .messages-thread {
        padding: 14px 12px 14px 16px;
        gap: 12px;
    }

    .messages-thread__avatar,
    .messages-panel__avatar {
        width: 44px;
        height: 44px;
        flex-basis: 44px;
        font-size: 16px;
    }

    .messages-thread__name {
        font-size: 14px;
    }

    .messages-thread__text {
        font-size: 12px;
    }

    .messages-thread-delete-form {
        padding: 10px 10px 10px 0;
    }

    .messages-thread-delete {
        min-width: 48px;
        height: 34px;
        padding: 0 10px;
        font-size: 12px;
        border-radius: 10px;
    }

    .messages-panel__head {
        padding: 14px 16px;
    }

    .messages-panel__foot {
        padding: 14px 16px 16px;
    }

    .messages-panel__body {
        padding: 14px;
    }

    .messages-bubble {
        max-width: 94%;
        border-radius: 16px;
    }

    .messages-form__submit,
    .messages-panel__delete-btn {
        width: 100%;
    }

    html[dir="rtl"] .messages-thread-delete-form,
    body.is-rtl .messages-thread-delete-form {
        padding: 10px 0 10px 10px;
    }
}